Finding the Fourth Proportional to 1,123.07, 1,683.82 and 537.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.07 : 1,683.82 = 537.37 : x
2. Step 2: Convert to fraction form
   1,123.07/1,683.82 = 537.37/x
3. Step 3: Cross multiply
   1,123.07x = 1,683.82 × 537.37
4. Step 4: Simplify right side
   1,123.07x = 904,830.82
5. Step 5: Solve for x
   x = 904,830.82/1,123.07
6. Step 6: Final answer
   x = 805.68